diff --git a/mediapipe/python/BUILD b/mediapipe/python/BUILD index 2fdc0814..7ba269f5 100644 --- a/mediapipe/python/BUILD +++ b/mediapipe/python/BUILD @@ -92,6 +92,7 @@ cc_library( "//mediapipe/tasks/cc/audio/audio_embedder:audio_embedder_graph", "//mediapipe/tasks/cc/vision/face_detector:face_detector_graph", "//mediapipe/tasks/cc/vision/face_landmarker:face_landmarker_graph", + "//mediapipe/tasks/cc/vision/pose_landmarker:pose_landmarker_graph", "//mediapipe/tasks/cc/vision/face_stylizer:face_stylizer_graph", "//mediapipe/tasks/cc/vision/gesture_recognizer:gesture_recognizer_graph", "//mediapipe/tasks/cc/vision/image_classifier:image_classifier_graph", diff --git a/mediapipe/tasks/python/test/vision/BUILD b/mediapipe/tasks/python/test/vision/BUILD index 704e1af5..2014b6ba 100644 --- a/mediapipe/tasks/python/test/vision/BUILD +++ b/mediapipe/tasks/python/test/vision/BUILD @@ -162,3 +162,26 @@ py_test( "@com_google_protobuf//:protobuf_python", ], ) + +py_test( + name = "pose_landmarker_test", + srcs = ["pose_landmarker_test.py"], + data = [ + "//mediapipe/tasks/testdata/vision:test_images", + "//mediapipe/tasks/testdata/vision:test_models", + "//mediapipe/tasks/testdata/vision:test_protos", + ], + deps = [ + "//mediapipe/tasks/cc/components/containers/proto:landmarks_detection_result_py_pb2", + "//mediapipe/python:_framework_bindings", + "//mediapipe/tasks/python/components/containers:landmark", + "//mediapipe/tasks/python/components/containers:landmark_detection_result", + "//mediapipe/tasks/python/components/containers:rect", + "//mediapipe/tasks/python/core:base_options", + "//mediapipe/tasks/python/test:test_utils", + "//mediapipe/tasks/python/vision:pose_landmarker", + "//mediapipe/tasks/python/vision/core:image_processing_options", + "//mediapipe/tasks/python/vision/core:vision_task_running_mode", + "@com_google_protobuf//:protobuf_python", + ], +) diff --git a/mediapipe/tasks/python/test/vision/pose_landmarker_test.py b/mediapipe/tasks/python/test/vision/pose_landmarker_test.py new file mode 100644 index 00000000..a1704e7f --- /dev/null +++ b/mediapipe/tasks/python/test/vision/pose_landmarker_test.py @@ -0,0 +1,177 @@ +# Copyright 2022 The MediaPipe Authors. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Tests for pose landmarker.""" + +import enum +from unittest import mock + +from absl.testing import absltest +from absl.testing import parameterized +import numpy as np + +from google.protobuf import text_format +from mediapipe.python._framework_bindings import image as image_module +from mediapipe.tasks.cc.components.containers.proto import landmarks_detection_result_pb2 +from mediapipe.tasks.python.components.containers import landmark as landmark_module +from mediapipe.tasks.python.components.containers import landmark_detection_result as landmark_detection_result_module +from mediapipe.tasks.python.components.containers import rect as rect_module +from mediapipe.tasks.python.core import base_options as base_options_module +from mediapipe.tasks.python.test import test_utils +from mediapipe.tasks.python.vision import pose_landmarker +from mediapipe.tasks.python.vision.core import image_processing_options as image_processing_options_module +from mediapipe.tasks.python.vision.core import vision_task_running_mode as running_mode_module + +PoseLandmarkerResult = pose_landmarker.PoseLandmarkerResult +_LandmarksDetectionResultProto = landmarks_detection_result_pb2.LandmarksDetectionResult +_BaseOptions = base_options_module.BaseOptions +_Rect = rect_module.Rect +_Landmark = landmark_module.Landmark +_NormalizedLandmark = landmark_module.NormalizedLandmark +_LandmarksDetectionResult = landmark_detection_result_module.LandmarksDetectionResult +_Image = image_module.Image +_PoseLandmarker = pose_landmarker.PoseLandmarker +_PoseLandmarkerOptions = pose_landmarker.PoseLandmarkerOptions +_RUNNING_MODE = running_mode_module.VisionTaskRunningMode +_ImageProcessingOptions = image_processing_options_module.ImageProcessingOptions + +_POSE_LANDMARKER_BUNDLE_ASSET_FILE = 'pose_landmarker.task' +_BURGER_IMAGE = 'burger.jpg' +_POSE_IMAGE = 'pose.jpg' +_POSE_LANDMARKS = 'pose_landmarks.pbtxt' +_LANDMARKS_ERROR_TOLERANCE = 0.03 +_LANDMARKS_ON_VIDEO_ERROR_TOLERANCE = 0.03 + + +def _get_expected_pose_landmarker_result( + file_path: str) -> PoseLandmarkerResult: + landmarks_detection_result_file_path = test_utils.get_test_data_path( + file_path) + with open(landmarks_detection_result_file_path, 'rb') as f: + landmarks_detection_result_proto = _LandmarksDetectionResultProto() + # Use this if a .pb file is available. + # landmarks_detection_result_proto.ParseFromString(f.read()) + text_format.Parse(f.read(), landmarks_detection_result_proto) + landmarks_detection_result = _LandmarksDetectionResult.create_from_pb2( + landmarks_detection_result_proto) + return PoseLandmarkerResult( + pose_landmarks=[landmarks_detection_result.landmarks], + pose_world_landmarks=[], + pose_auxiliary_landmarks=[] + ) + + +class ModelFileType(enum.Enum): + FILE_CONTENT = 1 + FILE_NAME = 2 + + +class PoseLandmarkerTest(parameterized.TestCase): + + def setUp(self): + super().setUp() + self.test_image = _Image.create_from_file( + test_utils.get_test_data_path(_POSE_IMAGE)) + self.model_path = test_utils.get_test_data_path( + _POSE_LANDMARKER_BUNDLE_ASSET_FILE) + + def _expect_pose_landmarker_results_correct( + self, + actual_result: PoseLandmarkerResult, + expected_result: PoseLandmarkerResult, + error_tolerance: float + ): + # Expects to have the same number of poses detected. + self.assertLen(actual_result.pose_landmarks, + len(expected_result.pose_landmarks)) + self.assertLen(actual_result.pose_world_landmarks, + len(expected_result.pose_world_landmarks)) + self.assertLen(actual_result.pose_auxiliary_landmarks, + len(expected_result.pose_auxiliary_landmarks)) + # Actual landmarks match expected landmarks. + actual_landmarks = actual_result.pose_landmarks[0] + expected_landmarks = expected_result.pose_landmarks[0] + for i, pose_landmark in enumerate(actual_landmarks): + self.assertAlmostEqual( + pose_landmark.x, + expected_landmarks[i].x, + delta=error_tolerance + ) + self.assertAlmostEqual( + pose_landmark.y, + expected_landmarks[i].y, + delta=error_tolerance + ) + + def test_create_from_file_succeeds_with_valid_model_path(self): + # Creates with default option and valid model file successfully. + with _PoseLandmarker.create_from_model_path(self.model_path) as landmarker: + self.assertIsInstance(landmarker, _PoseLandmarker) + + def test_create_from_options_succeeds_with_valid_model_path(self): + # Creates with options containing model file successfully. + base_options = _BaseOptions(model_asset_path=self.model_path) + options = _PoseLandmarkerOptions(base_options=base_options) + with _PoseLandmarker.create_from_options(options) as landmarker: + self.assertIsInstance(landmarker, _PoseLandmarker) + + def test_create_from_options_fails_with_invalid_model_path(self): + # Invalid empty model path. + with self.assertRaisesRegex( + RuntimeError, 'Unable to open file at /path/to/invalid/model.tflite'): + base_options = _BaseOptions( + model_asset_path='/path/to/invalid/model.tflite') + options = _PoseLandmarkerOptions(base_options=base_options) + _PoseLandmarker.create_from_options(options) + + def test_create_from_options_succeeds_with_valid_model_content(self): + # Creates with options containing model content successfully. + with open(self.model_path, 'rb') as f: + base_options = _BaseOptions(model_asset_buffer=f.read()) + options = _PoseLandmarkerOptions(base_options=base_options) + landmarker = _PoseLandmarker.create_from_options(options) + self.assertIsInstance(landmarker, _PoseLandmarker) + + @parameterized.parameters( + (ModelFileType.FILE_NAME, + _get_expected_pose_landmarker_result(_POSE_LANDMARKS)), + (ModelFileType.FILE_CONTENT, + _get_expected_pose_landmarker_result(_POSE_LANDMARKS))) + def test_detect(self, model_file_type, expected_detection_result): + # Creates pose landmarker. + if model_file_type is ModelFileType.FILE_NAME: + base_options = _BaseOptions(model_asset_path=self.model_path) + elif model_file_type is ModelFileType.FILE_CONTENT: + with open(self.model_path, 'rb') as f: + model_content = f.read() + base_options = _BaseOptions(model_asset_buffer=model_content) + else: + # Should never happen + raise ValueError('model_file_type is invalid.') + + options = _PoseLandmarkerOptions(base_options=base_options) + landmarker = _PoseLandmarker.create_from_options(options) + + # Performs pose landmarks detection on the input. + detection_result = landmarker.detect(self.test_image) + # Comparing results. + self._expect_pose_landmarker_results_correct( + detection_result, expected_detection_result, _LANDMARKS_ERROR_TOLERANCE + ) + # Closes the pose landmarker explicitly when the pose landmarker is not used + # in a context. + landmarker.close() + + +if __name__ == '__main__': + absltest.main() diff --git a/mediapipe/tasks/python/vision/BUILD b/mediapipe/tasks/python/vision/BUILD index 046ce2dc..db04ba7b 100644 --- a/mediapipe/tasks/python/vision/BUILD +++ b/mediapipe/tasks/python/vision/BUILD @@ -179,6 +179,27 @@ py_library( ], ) +py_library( + name = "pose_landmarker", + srcs = [ + "pose_landmarker.py", + ], + deps = [ + "//mediapipe/framework/formats:landmark_py_pb2", + "//mediapipe/python:_framework_bindings", + "//mediapipe/python:packet_creator", + "//mediapipe/python:packet_getter", + "//mediapipe/tasks/cc/vision/pose_landmarker/proto:pose_landmarker_graph_options_py_pb2", + "//mediapipe/tasks/python/components/containers:landmark", + "//mediapipe/tasks/python/core:base_options", + "//mediapipe/tasks/python/core:optional_dependencies", + "//mediapipe/tasks/python/core:task_info", + "//mediapipe/tasks/python/vision/core:base_vision_task_api", + "//mediapipe/tasks/python/vision/core:image_processing_options", + "//mediapipe/tasks/python/vision/core:vision_task_running_mode", + ], +) + py_library( name = "face_detector", srcs = [ diff --git a/mediapipe/tasks/python/vision/pose_landmarker.py b/mediapipe/tasks/python/vision/pose_landmarker.py new file mode 100644 index 00000000..370c7725 --- /dev/null +++ b/mediapipe/tasks/python/vision/pose_landmarker.py @@ -0,0 +1,428 @@ +# Copyright 2022 The MediaPipe Authors. All Rights Reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""MediaPipe pose landmarker task.""" + +import dataclasses +from typing import Callable, Mapping, Optional, List + +from mediapipe.framework.formats import landmark_pb2 +from mediapipe.python import packet_creator +from mediapipe.python import packet_getter +from mediapipe.python._framework_bindings import image as image_module +from mediapipe.python._framework_bindings import packet as packet_module +from mediapipe.tasks.cc.vision.pose_landmarker.proto import pose_landmarker_graph_options_pb2 +from mediapipe.tasks.python.components.containers import landmark as landmark_module +from mediapipe.tasks.python.core import base_options as base_options_module +from mediapipe.tasks.python.core import task_info as task_info_module +from mediapipe.tasks.python.core.optional_dependencies import doc_controls +from mediapipe.tasks.python.vision.core import base_vision_task_api +from mediapipe.tasks.python.vision.core import image_processing_options as image_processing_options_module +from mediapipe.tasks.python.vision.core import vision_task_running_mode as running_mode_module + +_BaseOptions = base_options_module.BaseOptions +_PoseLandmarkerGraphOptionsProto = ( + pose_landmarker_graph_options_pb2.PoseLandmarkerGraphOptions +) +_RunningMode = running_mode_module.VisionTaskRunningMode +_ImageProcessingOptions = image_processing_options_module.ImageProcessingOptions +_TaskInfo = task_info_module.TaskInfo + +_IMAGE_IN_STREAM_NAME = 'image_in' +_IMAGE_OUT_STREAM_NAME = 'image_out' +_IMAGE_TAG = 'IMAGE' +_NORM_RECT_STREAM_NAME = 'norm_rect_in' +_NORM_RECT_TAG = 'NORM_RECT' +_SEGMENTATION_MASK_STREAM_NAME = 'segmentation_mask' +_SEGMENTATION_MASK_TAG = 'SEGMENTATION_MASK' +_NORM_LANDMARKS_STREAM_NAME = 'norm_landmarks' +_NORM_LANDMARKS_TAG = 'NORM_LANDMARKS' +_POSE_WORLD_LANDMARKS_STREAM_NAME = 'world_landmarks' +_POSE_WORLD_LANDMARKS_TAG = 'WORLD_LANDMARKS' +_POSE_AUXILIARY_LANDMARKS_STREAM_NAME = 'auxiliary_landmarks' +_POSE_AUXILIARY_LANDMARKS_TAG = 'AUXILIARY_LANDMARKS' +_TASK_GRAPH_NAME = 'mediapipe.tasks.vision.pose_landmarker.PoseLandmarkerGraph' +_MICRO_SECONDS_PER_MILLISECOND = 1000 + + +@dataclasses.dataclass +class PoseLandmarkerResult: + """The pose landmarks detection result from PoseLandmarker, where each vector element represents a single pose detected in the image. + + Attributes: + pose_landmarks: Detected pose landmarks in normalized image coordinates. + pose_world_landmarks: Detected pose landmarks in world coordinates. + pose_auxiliary_landmarks: Detected auxiliary landmarks, used for deriving + ROI for next frame. + segmentation_masks: Segmentation masks for pose. + """ + + pose_landmarks: List[List[landmark_module.NormalizedLandmark]] + pose_world_landmarks: List[List[landmark_module.Landmark]] + pose_auxiliary_landmarks: List[List[landmark_module.NormalizedLandmark]] + segmentation_masks: Optional[List[image_module.Image]] = None + + +def _build_landmarker_result( + output_packets: Mapping[str, packet_module.Packet] +) -> PoseLandmarkerResult: + """Constructs a `PoseLandmarkerResult` from output packets.""" + pose_landmarker_result = PoseLandmarkerResult([], [], [], []) + + if _SEGMENTATION_MASK_STREAM_NAME in output_packets: + pose_landmarker_result.segmentation_masks = packet_getter.get_image_list( + output_packets[_SEGMENTATION_MASK_STREAM_NAME] + ) + + pose_landmarks_proto_list = packet_getter.get_proto_list( + output_packets[_NORM_LANDMARKS_STREAM_NAME] + ) + pose_world_landmarks_proto_list = packet_getter.get_proto_list( + output_packets[_POSE_WORLD_LANDMARKS_STREAM_NAME] + ) + pose_auxiliary_landmarks_proto_list = packet_getter.get_proto_list( + output_packets[_POSE_AUXILIARY_LANDMARKS_STREAM_NAME] + ) + + for proto in pose_landmarks_proto_list: + pose_landmarks = landmark_pb2.NormalizedLandmarkList() + pose_landmarks.MergeFrom(proto) + pose_landmarks_list = [] + for pose_landmark in pose_landmarks.landmark: + pose_landmarks_list.append( + landmark_module.NormalizedLandmark.create_from_pb2(pose_landmark) + ) + pose_landmarker_result.pose_landmarks.append(pose_landmarks_list) + + for proto in pose_world_landmarks_proto_list: + pose_world_landmarks = landmark_pb2.LandmarkList() + pose_world_landmarks.MergeFrom(proto) + pose_world_landmarks_list = [] + for pose_world_landmark in pose_world_landmarks.landmark: + pose_world_landmarks_list.append( + landmark_module.Landmark.create_from_pb2(pose_world_landmark) + ) + pose_landmarker_result.pose_world_landmarks.append( + pose_world_landmarks_list + ) + + for proto in pose_auxiliary_landmarks_proto_list: + pose_auxiliary_landmarks = landmark_pb2.NormalizedLandmarkList() + pose_auxiliary_landmarks.MergeFrom(proto) + pose_auxiliary_landmarks_list = [] + for pose_auxiliary_landmark in pose_auxiliary_landmarks.landmark: + pose_auxiliary_landmarks_list.append( + landmark_module.NormalizedLandmark.create_from_pb2(pose_auxiliary_landmark) + ) + pose_landmarker_result.pose_auxiliary_landmarks.append( + pose_auxiliary_landmarks_list + ) + return pose_landmarker_result + + +@dataclasses.dataclass +class PoseLandmarkerOptions: + """Options for the pose landmarker task. + + Attributes: + base_options: Base options for the pose landmarker task. + running_mode: The running mode of the task. Default to the image mode. + HandLandmarker has three running modes: 1) The image mode for detecting + pose landmarks on single image inputs. 2) The video mode for detecting + pose landmarks on the decoded frames of a video. 3) The live stream mode + for detecting pose landmarks on the live stream of input data, such as + from camera. In this mode, the "result_callback" below must be specified + to receive the detection results asynchronously. + num_poses: The maximum number of poses can be detected by the PoseLandmarker. + min_pose_detection_confidence: The minimum confidence score for the pose + detection to be considered successful. + min_pose_presence_confidence: The minimum confidence score of pose presence + score in the pose landmark detection. + min_tracking_confidence: The minimum confidence score for the pose tracking + to be considered successful. + result_callback: The user-defined result callback for processing live stream + data. The result callback should only be specified when the running mode + is set to the live stream mode. + """ + + base_options: _BaseOptions + running_mode: _RunningMode = _RunningMode.IMAGE + num_poses: int = 1 + min_pose_detection_confidence: float = 0.5 + min_pose_presence_confidence: float = 0.5 + min_tracking_confidence: float = 0.5 + output_segmentation_masks: bool = False + result_callback: Optional[ + Callable[[PoseLandmarkerResult, image_module.Image, int], None] + ] = None + + @doc_controls.do_not_generate_docs + def to_pb2(self) -> _PoseLandmarkerGraphOptionsProto: + """Generates an PoseLandmarkerGraphOptions protobuf object.""" + base_options_proto = self.base_options.to_pb2() + base_options_proto.use_stream_mode = ( + False if self.running_mode == _RunningMode.IMAGE else True + ) + + # Initialize the pose landmarker options from base options. + pose_landmarker_options_proto = _PoseLandmarkerGraphOptionsProto( + base_options=base_options_proto + ) + pose_landmarker_options_proto.min_tracking_confidence = ( + self.min_tracking_confidence + ) + pose_landmarker_options_proto.pose_detector_graph_options.num_poses = ( + self.num_poses + ) + pose_landmarker_options_proto.pose_detector_graph_options.min_detection_confidence = ( + self.min_pose_detection_confidence + ) + pose_landmarker_options_proto.pose_landmarks_detector_graph_options.min_detection_confidence = ( + self.min_pose_presence_confidence + ) + return pose_landmarker_options_proto + + +class PoseLandmarker(base_vision_task_api.BaseVisionTaskApi): + """Class that performs pose landmarks detection on images.""" + + @classmethod + def create_from_model_path(cls, model_path: str) -> 'PoseLandmarker': + """Creates an `PoseLandmarker` object from a TensorFlow Lite model and the default `PoseLandmarkerOptions`. + + Note that the created `PoseLandmarker` instance is in image mode, for + detecting pose landmarks on single image inputs. + + Args: + model_path: Path to the model. + + Returns: + `PoseLandmarker` object that's created from the model file and the + default `PoseLandmarkerOptions`. + + Raises: + ValueError: If failed to create `PoseLandmarker` object from the + provided file such as invalid file path. + RuntimeError: If other types of error occurred. + """ + base_options = _BaseOptions(model_asset_path=model_path) + options = PoseLandmarkerOptions( + base_options=base_options, running_mode=_RunningMode.IMAGE + ) + return cls.create_from_options(options) + + @classmethod + def create_from_options( + cls, options: PoseLandmarkerOptions + ) -> 'PoseLandmarker': + """Creates the `PoseLandmarker` object from pose landmarker options. + + Args: + options: Options for the pose landmarker task. + + Returns: + `PoseLandmarker` object that's created from `options`. + + Raises: + ValueError: If failed to create `PoseLandmarker` object from + `PoseLandmarkerOptions` such as missing the model. + RuntimeError: If other types of error occurred. + """ + + def packets_callback(output_packets: Mapping[str, packet_module.Packet]): + if output_packets[_IMAGE_OUT_STREAM_NAME].is_empty(): + return + + image = packet_getter.get_image(output_packets[_IMAGE_OUT_STREAM_NAME]) + + if output_packets[_NORM_LANDMARKS_STREAM_NAME].is_empty(): + empty_packet = output_packets[_NORM_LANDMARKS_STREAM_NAME] + options.result_callback( + PoseLandmarkerResult([], [], []), + image, + empty_packet.timestamp.value // _MICRO_SECONDS_PER_MILLISECOND, + ) + return + + pose_landmarker_result = _build_landmarker_result(output_packets) + timestamp = output_packets[_NORM_LANDMARKS_STREAM_NAME].timestamp + options.result_callback( + pose_landmarker_result, + image, + timestamp.value // _MICRO_SECONDS_PER_MILLISECOND, + ) + + output_streams = [ + ':'.join([_SEGMENTATION_MASK_TAG, _SEGMENTATION_MASK_STREAM_NAME]), + ':'.join([_NORM_LANDMARKS_TAG, _NORM_LANDMARKS_STREAM_NAME]), + ':'.join([ + _POSE_WORLD_LANDMARKS_TAG, _POSE_WORLD_LANDMARKS_STREAM_NAME + ]), + ':'.join([ + _POSE_AUXILIARY_LANDMARKS_TAG, + _POSE_AUXILIARY_LANDMARKS_STREAM_NAME + ]), + ':'.join([_IMAGE_TAG, _IMAGE_OUT_STREAM_NAME]), + ] + + if options.output_segmentation_masks: + output_streams.append( + ':'.join([_SEGMENTATION_MASK_TAG, _SEGMENTATION_MASK_STREAM_NAME]) + ) + + task_info = _TaskInfo( + task_graph=_TASK_GRAPH_NAME, + input_streams=[ + ':'.join([_IMAGE_TAG, _IMAGE_IN_STREAM_NAME]), + ':'.join([_NORM_RECT_TAG, _NORM_RECT_STREAM_NAME]), + ], + output_streams=output_streams, + task_options=options, + ) + return cls( + task_info.generate_graph_config( + enable_flow_limiting=options.running_mode + == _RunningMode.LIVE_STREAM + ), + options.running_mode, + packets_callback if options.result_callback else None, + ) + + def detect( + self, + image: image_module.Image, + image_processing_options: Optional[_ImageProcessingOptions] = None, + ) -> PoseLandmarkerResult: + """Performs pose landmarks detection on the given image. + + Only use this method when the PoseLandmarker is created with the image + running mode. + + Args: + image: MediaPipe Image. + image_processing_options: Options for image processing. + + Returns: + The pose landmarker detection results. + + Raises: + ValueError: If any of the input arguments is invalid. + RuntimeError: If pose landmarker detection failed to run. + """ + normalized_rect = self.convert_to_normalized_rect( + image_processing_options, image, roi_allowed=False + ) + output_packets = self._process_image_data({ + _IMAGE_IN_STREAM_NAME: packet_creator.create_image(image), + _NORM_RECT_STREAM_NAME: packet_creator.create_proto( + normalized_rect.to_pb2() + ), + }) + + if output_packets[_NORM_LANDMARKS_STREAM_NAME].is_empty(): + return PoseLandmarkerResult([], [], []) + + return _build_landmarker_result(output_packets) + + def detect_for_video( + self, + image: image_module.Image, + timestamp_ms: int, + image_processing_options: Optional[_ImageProcessingOptions] = None, + ) -> PoseLandmarkerResult: + """Performs pose landmarks detection on the provided video frame. + + Only use this method when the PoseLandmarker is created with the video + running mode. + + Only use this method when the PoseLandmarker is created with the video + running mode. It's required to provide the video frame's timestamp (in + milliseconds) along with the video frame. The input timestamps should be + monotonically increasing for adjacent calls of this method. + + Args: + image: MediaPipe Image. + timestamp_ms: The timestamp of the input video frame in milliseconds. + image_processing_options: Options for image processing. + + Returns: + The pose landmarks detection results. + + Raises: + ValueError: If any of the input arguments is invalid. + RuntimeError: If pose landmarker detection failed to run. + """ + normalized_rect = self.convert_to_normalized_rect( + image_processing_options, image, roi_allowed=False + ) + output_packets = self._process_video_data({ + _IMAGE_IN_STREAM_NAME: packet_creator.create_image(image).at( + timestamp_ms * _MICRO_SECONDS_PER_MILLISECOND + ), + _NORM_RECT_STREAM_NAME: packet_creator.create_proto( + normalized_rect.to_pb2() + ).at(timestamp_ms * _MICRO_SECONDS_PER_MILLISECOND), + }) + + if output_packets[_NORM_LANDMARKS_STREAM_NAME].is_empty(): + return PoseLandmarkerResult([], [], []) + + return _build_landmarker_result(output_packets) + + def detect_async( + self, + image: image_module.Image, + timestamp_ms: int, + image_processing_options: Optional[_ImageProcessingOptions] = None, + ) -> None: + """Sends live image data to perform pose landmarks detection. + + The results will be available via the "result_callback" provided in the + PoseLandmarkerOptions. Only use this method when the PoseLandmarker is + created with the live stream running mode. + + Only use this method when the PoseLandmarker is created with the live + stream running mode. The input timestamps should be monotonically increasing + for adjacent calls of this method. This method will return immediately after + the input image is accepted. The results will be available via the + `result_callback` provided in the `PoseLandmarkerOptions`. The + `detect_async` method is designed to process live stream data such as + camera input. To lower the overall latency, pose landmarker may drop the + input images if needed. In other words, it's not guaranteed to have output + per input image. + + The `result_callback` provides: + - The pose landmarks detection results. + - The input image that the pose landmarker runs on. + - The input timestamp in milliseconds. + + Args: + image: MediaPipe Image. + timestamp_ms: The timestamp of the input image in milliseconds. + image_processing_options: Options for image processing. + + Raises: + ValueError: If the current input timestamp is smaller than what the + pose landmarker has already processed. + """ + normalized_rect = self.convert_to_normalized_rect( + image_processing_options, image, roi_allowed=False + ) + self._send_live_stream_data({ + _IMAGE_IN_STREAM_NAME: packet_creator.create_image(image).at( + timestamp_ms * _MICRO_SECONDS_PER_MILLISECOND + ), + _NORM_RECT_STREAM_NAME: packet_creator.create_proto( + normalized_rect.to_pb2() + ).at(timestamp_ms * _MICRO_SECONDS_PER_MILLISECOND), + })